Objectives. We aimed to compare the rate of apoptosis after cardiopulmonary bypass (CPB) and cardioplegic arrest during coronary artery bypass grafting (CABG) surgery between atrial and ventricular tissue.
Methods. During CABG surgery with CPB and cardioplegic arrest, sequential biopsies were taken from the right atrial appendage and left ventricular anterior wall before CPB and after aortic cross clamp release. Change in number of apoptotic cells and biochemical markers of myocardial ischaemia and renal dysfunction were assessed.
Results. CPB was associated with a transient small, but significant increase in CK (1091 +/- 374%), CK-MB (128 +/- 38%), troponin-T (102 +/- 13%) and NT-proBNP (1308 +/- 372%) levels (all: p
Conclusion. CABG surgery with CPB and cardioplegic arrest is associated with an elevated rate of apoptosis in ventricular but not in atrial myocardial tissue. Ventricular tissue may be more sensitive to detect changes than atrial tissue, and may be more useful to investigate the protective effects of therapeutic intervention. (Neth Heart J 2010;18:236-42.)
|Tijdschrift||Netherlands Heart Journal|
|Nummer van het tijdschrift||5|
|Status||Published - mei-2010|